Does Magnif Wheel Cleaner have any acid in it?
No it doesn’t. It has a pH of 6.8. Tap water is pH7
Does Magnif Wheel Cleaner protect the mags from dust build up or does it work like a repellent?
No it does not protect from dust build up as that is impossible - but once the mags are cleaned back to the original finish, it takes a lot longer for the break dust to become apparent.